Production of Respirable Vesicles Containing Live Legionella pneumophila Cells by Two Acanthamoeba spp-Reference-Cited by-同舟云学术

Production of Respirable Vesicles Containing Live Legionella pneumophila Cells by Two Acanthamoeba spp

Published:1998-01 Issue:1 Volume:64 Page:279-286
ISSN:0099-2240
Container-title:Applied and Environmental Microbiology
language:en
Short-container-title:Appl Environ Microbiol

Author:

Berk Sharon G.¹,Ting Rebecca S.¹,Turner Glenn W.²,Ashburn Rebecca J.¹

Affiliation:

1. Center for the Management, Utilization and Protection of Water Resources, Tennessee Technological University, Cookeville, Tennessee 38505,1 and

2. Biology Department, Middle Tennessee State University, Murfreesboro, Tennessee 371322

Abstract

ABSTRACT Two Acanthamoeba species, fed at three temperatures, expelled vesicles containing living Legionella pneumophila cells. Vesicles ranged from 2.1 to 6.4 μm in diameter and theoretically could contain several hundred bacteria. Viable L. pneumophila cells were observed within vesicles which had been exposed to two cooling tower biocides for 24 h. Clusters of bacteria in vesicles were not dispersed by freeze-thawing and sonication. Such vesicles may be agents for the transmission of legionellosis associated with cooling towers, and the risk may be underestimated by plate count methods.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

Link

https://journals.asm.org/doi/pdf/10.1128/AEM.64.1.279-286.1998

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